I was wondering if someone has experience with a 43 foot vertical, mounted on top of a tower. I used one before on top of my roof, but that one was supported with simple guy wires. Needless to say th
tower. I used one before on top of my roof, but that one was supported with simple guy wires. Needless to say that is not easy to do if I put it on top of my tower (85 feet tall). Any suggestion? May
There *is* no such thing as simple trig, if your last brush with a cosine was 56 years ago! Fortunately, you can back this one out with the old hypotenuse formula. Even I remember how to do that. 73,
For anyone who is "trig challenged",, pencil, paper and a ruler and using about 8 feet to an inch (i.e.1/8th of an inch to a foot) would probably work out close enough. Anyway, trig wouldn't allow fo
I have to confess it's not been quite that long, but I'm only 72. <:-)) Actually I never took trig, which is quite a trick because I have a math minor. Try Calc II without ever having had trig. That
On 11/1/2012 8:28 AM, Gene Fuller wrote: For anyone who is "trig challenged",, pencil, paper and a ruler and using about 8 feet to an inch (i.e.1/8th of an inch to a foot) would probably work out clo
The mechanical considerations of mounting a 43-foot vertical topside on a tower are considerable. But the electrical considerations aren't trivial, either. As I understand, without proper isolation o
And after all that, the elevation pattern would be considerably inferior to a dipole, as documented in the ARRL Antenna Handbook in a graph illustrating the pseudo Brewster angle effects for horizont
I read an article somewhere where the ham had some experimenting with the radiation angle of an elevated 1/4 wave vertical. As you raise the vertical you get lower radiation angles up to a point. Bey
The model I seem to recall, either by K9YC or W8JI, involved the feedline running to the base of the tower to a choke and then up the tower to another choke at the feedpoint. And after all that, the
Rick, YES! Thanks for reminding me. You're absolutely right. And now that you've reminded me, THAT is exactly the conclusion that K9YC came to. _______________________________________________ _______